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₹609.29 (Including tax)
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Quantity | Discount | Price |
---|---|---|
5 - 10 | 5% | ₹578.83 (Including tax) |
11 - 20 | 8% | ₹560.54 (Including tax) |
21 - 40 | 10% | ₹548.36 (Including tax) |
41 - 100 | 12% | ₹536.17 (Including tax) |
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The sensor determines the concentration of alcohol in the air, the result can be obtained measuring the voltage on the analog output. The system is powered with the voltage from 2.5 V to 5 V. It has a digital and analog output, making it compatible with mostof the commissioning modules including Raspberry Pi and Arduino.
With the help of placed on the reverse side of the board, potentiometer, set is the threshold, exceeding of which, causes the output D0 changing from a high to a low status. The pin D0 can be linked directly with a microcontroller or commissioning set, including Arduino, or for example, a module with a buzzer, which will signal a too low or too high level of alcohol in the air.
The sensor has an analog output A0, which must be connected to the pin of the converter A/D (analog input in Arduino). This will allow you to measure the proportional voltage signal and more accurately determine the level of alcohol.
Operating principle:
MQ-3 gas sensor applies SnO2 which has a lower conductivity in the clear air as a gas-sensing material. In an atmosphere where there may be alcohol gas, the conductivity of the gas sensor raises along with the concentration of the alcohol gas increases.
1 x MQ-3 Gas Sensor
1 x 4-pin custom connector jumper wire
Voltage(V) |
2.5 V to 5 V |
---|---|
Output Pin |
Analog and digital |
Pin |
Gold pin connectors ,2.54 mm pitch |
Board size |
40 x 21 mm |
Mounting Holes Diameter (mm) |
2 mm |
Boost Converter Chip |
PT1301 |
Interface |
Analog output ,Digital Output ,Power ground ,VCC Positive power supply (2.5V-5.0V) |
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Model |
DFRobot Gravity NH3 Sensor |
---|---|
Detection Gas |
Ammonia (NH3) |
Detection range |
0~100ppm |
Working Voltage |
3.3~5.5V DC |
Working Current |
<5mA |
Output Signal |
I2C ,UART (0~3V) ,analog voltage |
Compatibility |
Arduino ,ESP32 ,Raspberry pi |
Lifespan |
>2 years (in the air) |
Working Humidity Range |
15~90%RH (non-condensing) |
Working Temperature Range (°C) |
-20~50℃ |
Product Dimensions |
37 x 32mm |
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Heater voltage |
5.0±0.2V DC |
---|---|
Circuit Voltage |
5.0±0.2V DC |
Heater Current |
56±5mA |
Minimum impedance between Pin#2,3 and GND |
2.5MΩ |
Operating conditions |
0Ëš~40ËšC ,30~95%RH |
Temperature differential between inside and outside detector casing |
≤10˚C max. (see NOTE 1) |
Test gas conditions |
1250±100ppm iso-butane in air at 20˚±2˚C ,65±5%RH |
Circuit conditions |
VH=5.0±0.05V DC VC=5.0±0.05V DC |
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Model number |
TGS5141-P00 |
---|---|
Output current in CO |
1.2~3.2nA/ppm |
Target Gases |
Carbon monoxide |
Typical detection range |
0 ~ 5 ,000ppm |
Baseline offset(*1) |
<±10ppm equivalent |
Operating temperature |
10ËšC ~ +50ËšC (continuous) -20ËšC ~ +60ËšC (intermittent) |
Operating humidity |
10 ~ 95%RH (no condensation) |
Response time (T90) |
within 60 seconds |
Storage conditions |
-10ËšC ~ +50ËšC (continuous) -20ËšC ~ +60ËšC (intermittent |
Standard test conditions |
20±2˚C ,40±10%RH |
Weight |
approx. 2.5g |
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